At a Glance Temperatures can get downright frigid on Christmas, and many cities have seen the mercury plummet below zero.Even in the South, temperatures have dropped below the freezing mark – and below zero in some areas – on Christmas Day. Although chilly conditions are generally required for snow, which many hope to wake up to on Christmas, fewdream of a cold Christmas. Nevertheless, it can get quite cold on Christmas Day in the U.S. – even across the southern...

At a Glance A fast-moving system brought snow to parts of the upper Midwest and Northeast Dec. 11 and 12.Heavy lake-effect snow developed behind this weather system. A fast-moving weather system intensified and wrung out snow from the upper Midwest to parts of the Northeast Dec. 11 and 12, adding to accumulations from thepast weekend for some. Light snow swept through parts of the upper Midwest on Dec. 11 as jet stream energy pivotedthrough the region. As of early evening...

Winter means heading out on the frozen lake for fun -- but how do you know if the ice is thick enough to be on? Here’s a handy guide. ...